Home / 13,901.02-20,865.58-12,330.04

Finding the Fourth Proportional to 13,901.02, 20,865.58 and 12,330.04

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Solution

The fourth proportional to 13,901.02, 20,865.58 and 12,330.04 is: 18,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.02 : 20,865.58 = 12,330.04 : x
  2. Step 2: Convert to fraction form
    13,901.02/20,865.58 = 12,330.04/x
  3. Step 3: Cross multiply
    13,901.02x = 20,865.58 × 12,330.04
  4. Step 4: Simplify right side
    13,901.02x = 257,273,436.02
  5. Step 5: Solve for x
    x = 257,273,436.02/13,901.02
  6. Step 6: Final answer
    x = 18,507.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.